The dashboard decides the rules. This extension is the part that enforces them — a web page cannot block anything on youtube.com, only something running inside the browser can. It takes about two minutes and it is free.
The shield is not on the Chrome Web Store yet, so it installs unpacked — the same way any extension is tested before it is listed.
Unzip it. The folder you want is the one called extension
inside — not the whole download.
chrome://extensions — paste that into the address bar, it will not open
from a link.extension folder.edge://extensions or brave://extensions. Firefox and Safari use a
different extension format and are not supported yet.Paste the ID here. This is what lets the dashboard send your rules to the shield — without it the shield runs the default 10-to-13 settings and ignores anything you choose.
Back on the Family Dashboard, unlock with your PIN, choose the age profile and the categories, then press Save and send to the shield. Do that after every change — the shield only hears about rules you send it.
The shield reads the text a platform puts on screen — titles, channel names, descriptions, search terms — on YouTube, TikTok, Instagram and Twitch, and hides or blocks what matches your rules. That covers the three ways a child actually reaches bad content: searching for it, being recommended it, and clicking it.
It does not watch the video, so a clean title on a bad video can still get through. It is a filter, not a guarantee, and it is not a substitute for knowing what your kid watches.